/*
* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:  Logging definition
*
*/


#ifndef PRJ_LOGGING_H
#define PRJ_LOGGING_H

#include "debugconfig.h"

#ifdef PRJ_ENABLE_TRACE

#ifdef PRJ_FILE_TRACE
#include <flogger.h>
#else
#include <e32debug.h>
#endif

const TInt KMaxLogLineLength = 512;

#define KPRINTERROR        0x00000001 // Tracing level: error
#define KPRINTINFO        0x00000002 // Tracing level: function trace
#define KPRINTSTATE        0x00000004 // Tracing level: state machine info
#define KPRINTWARNING   0x00000008 // Tracing level: warning

const TInt KTraceMask = KPRINTERROR | KPRINTINFO | KPRINTSTATE | KPRINTWARNING;

NONSHARABLE_CLASS(TOverflowTruncate16) : public TDes16Overflow
    {
public:
    void Overflow(TDes16& /*aDes*/) {}
    };

NONSHARABLE_CLASS(TOverflowTruncate8) : public TDes8Overflow
    {
public:
    void Overflow(TDes8& /*aDes*/) {}
    };

inline void Trace(TRefByValue<const TDesC16> aFmt, ...)
    {
    VA_LIST list;
    VA_START(list,aFmt);
#ifdef PRJ_FILE_TRACE
    RFileLogger::WriteFormat(KLogDir, KLogFile, EFileLoggingModeAppend, aFmt, list);
#else
    TBuf16<KMaxLogLineLength> theFinalString;
    theFinalString.Append(KTracePrefix16);
    TOverflowTruncate16 overflow;
    theFinalString.AppendFormatList(aFmt,list,&overflow);
    RDebug::Print(theFinalString);
#endif
    }

inline void Trace(TRefByValue<const TDesC8> aFmt, ...)
    {
    VA_LIST list;
    VA_START(list, aFmt);
#ifdef PRJ_FILE_TRACE
    RFileLogger::WriteFormat(KLogDir, KLogFile, EFileLoggingModeAppend, aFmt, list);
#else
    TOverflowTruncate8 overflow;
    TBuf8<KMaxLogLineLength> buf8;
    buf8.Append(KTracePrefix8);
    buf8.AppendFormatList(aFmt, list, &overflow);
    TBuf16<KMaxLogLineLength> buf16(buf8.Length());
    buf16.Copy(buf8);
    TRefByValue<const TDesC> tmpFmt(_L("%S"));
    RDebug::Print(tmpFmt, &buf16);
#endif
    }

inline void TracePanic(
    char* aFile, 
    TInt aLine,
    TInt aPanicCode,
    const TDesC& aPanicCategory)
    {
    TPtrC8 fullFileName((const TUint8*)aFile);
    TPtrC8 fileName(fullFileName.Ptr()+fullFileName.LocateReverse('\\')+1);
    TBuf8<KMaxLogLineLength> buf;
    buf.Append(KPanicPrefix8);
    buf.AppendFormat(_L8("%d at line %d in file %S"), aPanicCode, aLine, &fileName);
    Trace(buf);
    User::Panic(aPanicCategory, aPanicCode); 
    }

inline void TraceLeave(char* aFile, TInt aLine, TInt aReason)
    {
    TPtrC8 fullFileName((const TUint8*)aFile);
    TPtrC8 fileName(fullFileName.Ptr()+fullFileName.LocateReverse('\\')+1);
    TBuf8<KMaxLogLineLength> buf;
    buf.Append(KLeavePrefix8);
    buf.AppendFormat(_L8("%d at line %d in file %S"), aReason, aLine, &fileName);
    Trace(buf);
    User::LeaveIfError(aReason);
    }

#define TRACE_INFO(p) {if(KTraceMask & KPRINTINFO) Trace p;}

#define TRACE_ERROR(p) {if(KTraceMask & KPRINTERROR) Trace p;}

#define TRACE_STATE(p) {if(KTraceMask & KPRINTSTATE) Trace p;}

#define TRACE_WARNING(p) {if(KTraceMask & KPRINTWARNING) Trace p;}

#define TRACE_INFO_SEG(p) {if(KTraceMask & KPRINTINFO) p;}

#define TRACE_ASSERT(GUARD, CODE) {if (!(GUARD)) TracePanic(__FILE__, __LINE__, CODE, KPanicCategory);}

#define PANIC(CODE) TracePanic(__FILE__, __LINE__, CODE, KPanicCategory)

#define LEAVE_IF_ERROR(REASON) {if (REASON) TraceLeave(__FILE__, __LINE__, REASON);}

#define LEAVE(REASON) {TraceLeave(__FILE__, __LINE__, REASON);}

#define TRACE_FUNC_ENTRY {if(KTraceMask & KPRINTINFO) { TPtrC8 ptr8((TUint8*)__PRETTY_FUNCTION__); Trace(KFuncEntryFormat8, &ptr8);}}

#define TRACE_FUNC_ENTRY_THIS {if(KTraceMask & KPRINTINFO) { TPtrC8 ptr8((TUint8*)__PRETTY_FUNCTION__); Trace(KFuncEntryThisFormat8, &ptr8, this);}}

#define TRACE_FUNC_EXIT {if(KTraceMask & KPRINTINFO) { TPtrC8 ptr8((TUint8*)__PRETTY_FUNCTION__); Trace(KFuncExitFormat8, &ptr8);}}

#define TRACE_FUNC {if(KTraceMask & KPRINTINFO) { TPtrC8 ptr8((TUint8*)__PRETTY_FUNCTION__); Trace(KFuncFormat8, &ptr8);}}

#define TRACE_FUNC_THIS {if(KTraceMask & KPRINTINFO) { TPtrC8 ptr8((TUint8*)__PRETTY_FUNCTION__); Trace(KFuncThisFormat8, &ptr8, this);}}

#define RETURN_IF_ERR(ERR) {if(ERR) {TPtrC8 ptr8((TUint8*)__FILE__); Trace(_L8(" RETURN %d at file %S line %d"), ERR, &ptr8, __LINE__); return ERR;}}

#else // PRJ_ENABLE_TRACE not defined

#define TRACE_INFO(p)

#define TRACE_ERROR(p)

#define TRACE_STATE(p)

#define TRACE_WARNING(p)

#define TRACE_INFO_SEG(p)

#define TRACE_ASSERT(GUARD, CODE)

#define PANIC(CODE) {User::Panic(KPanicCategory, CODE);}

#define LEAVE_IF_ERROR(REASON) {static_cast<void>(User::LeaveIfError(REASON));}

#define LEAVE(REASON) {static_cast<void>(User::Leave(REASON));}

#define TRACE_FUNC_ENTRY

#define TRACE_FUNC_ENTRY_THIS

#define TRACE_FUNC_EXIT

#define TRACE_FUNC

#define TRACE_FUNC_THIS

#define RETURN_IF_ERR(ERR) {if(ERR) return ERR;}
#endif // PRJ_ENABLE_TRACE

#endif // PRJ_LOGGING_H